Roll-box structure for gins



May 15, 1923.

Original Filed Nov. 30. 1920 A. A. VARDELL.

ROLL BOX STRUCTURE FOR GINS 2 Sheets-Sheet 1 6" z b 7' I /9 a L w za/ /7 dP// /i I fwewifior:

May 15, 1923.

A. A; VARDELL ROLL BOX STRUCTURE FOR GINS '2 Sheets-Sheet 2 Original Filed Nov. 30, 1920 Patented May 15, 1923.

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ARTHUR A. VARDELL, DECEASED, LATE or names, TEXAS, BY HIGHLAND GEE VARDELLL EXECUIEIX, or DALLAS, TEXAFS, assurance To CARVER COTTON GIN COMPANY, OF EAST BBIDGEWATER, MesSaCnUsETTs, A CORPORATION or MASSACHUSETTS.

ROLL-BOX STRUCTURE GINS.

Original application filed November 30, 1920, Serial No. 427,368. Divided and this application filed September 1, 1922.

To all whom it may concern:

Be it known that ARTHUR A. VARDELL, deceased, late a citizen of the United States, and resident of Dallas, in, the county of Dallas and State of Texas, did invent new and useful Improvements in Roll-Box Structures for Grins, of which the following is a specification.

This invention pertains to cotton gins and the like and relates more particularly to improvements in the roll-box and rakehead commonly formingessential parts of such machines.

As usually constructed gins employ devices in association with the rollbo ;.for retaining the'ginned seeds in contact with the saws until they are thoroughly delinted, but eflicient action to this end has heretofore been attained with'difi iculty and only by highly skilled persons by reason of the lack of appropriate means for adjusting the operative elements of the mechanism.

The object of the present invention is accordingly to provide readily manipulated means for adjusting essential elements of the roll-box structure in order to permit a high degree of operative efficiency to be atattained even by unskilled workmen. For this purpose the machine comprises a rollboX having a front wall which is pivoted at its upper edge to swing outwardly and away from the cylinder and arake-head secured to the lower part of such front wall. The function of the rake-head is to determine the degree of contact with the saws of seeds otherwise free to drop out of the roll-box by gravity by positioning these seeds in respect to the rotating saws to determine whether they will be seized by the saws and again taken around with the roll or whether they will drop through the slots in the rake-head and fall out of the machine. The desired automaticaction is such as to detain in the roll any seed with enough fibers projecting from it to be at all influenced by the near proximity of the saws, and to this end the present improvements provide for adjustment of the rakehead both axially and radially of the saw cylinder with appropriate means for retaining the rake-head in adjusted position.

In the accompanying drawings there is Eicrial No. 535,687.

shown by way of example a prefered arrangement of parts whereby the above object may well be attained and in such drawingsz Fig. l is a fragmentary central Vertical cross section throu h a linter gin embodying' the present invention; and

Fig. 2 is a front elevation to larger scale showing details of the breast structure of the gin shown in Fig. 1.

The numeral 1 indicates one of the side frame members of a gin of the type disclosed in the application of Arthur A. Vardell, Serial No. 427,868, November 30, 1920, of which this application is a division.

The side frame members, of which but one is shown herein, are provided with journals for a shaft 2 which supports the usual saw cylinder 3. A shaft Q, arranged at the front of the gin, provides a pivotal support for the grate-fall comprising the frame 5 and the spaced bars 6. The gin is provided with a roll-box 7 having the float 8 and the feed box 9 for feeding thefibre into the roll-box. The upper ends of the bars 6 are secured to a channel member 10 which may be rei'novably connected by means: of shackle bolts 11 to one of the transverse frame member 11". The front wall of the roll-b0 comprises a grid-like structure having vertical bars 12 and horizontal bars such 13, together with a sheet metal lining 1 L. This front wall commonly termed the seed board is pro vided with an outwardly and upwardly inclined portion 15 constituting the usual hopper for guiding fibre into the roll-box. The grid-like support for the front wall of the roll-box is pivotally mounted adjacent to its upper end upon pivot screws such as 16 which engage threaded openings in the side frame members 1 and whose inner ends 16 are reduced to enter bearing openings in bosses such as 16 in the grid frame. A rake-head 17 is secured to the lower edge of the front wall and from such lower edge a hinged cover 18 extends downwardly and forwardly.

A. shaft 19 extends transversely across the front wall of the roll-box and is mounted to turn in bearing slots 20 formed in the several ribs 12. Those bearing sl ts are provided with cover plates 22 which serve tov confine the shaft. within the slots. At its opposite ends the shaft 19 is provided with eccentric portions such as "23 of reduced diameter and each eccentric portion is arranged to turn ina sleeve 2%. Each of the sleeves 24: is provided with a radial flange 25 which slides within a slot defined. by the substantially parallel walls 26 in the end frame member 1. This slot is substantially radial as respects the center of the shaft 2, and permits bodily movement of the shaft 19 toward and prising the grid plate and the rake-head,

" the hand nuts 27 may be loosened and the entire structure swungmanually toward or away from the center 2 about the pivot pins 16. After the breast structure has been roughly adjusted in this manner the sleeves nuts 29 and turning the shaft 19 by means of a wrench engaging the openings 30.

' .VVhen the desired adjustment has been secured the lock nuts 29 are tightened thus retaining the parts in adjusted position. The rake-head, with the front wall structure, may also be adjusted transversely of the machine by turning the pivot screws 16 in'the threaded openings in the frame. members, such screws. having lock nuts 16 if desired'for reta ning them in adjusted position. This adjustment is permitted by the sliding of the shaft19 in the bearing slots It is to be understood that the right-hand side of the machine is similar in all respects, in so far as the adjusting means for the rollbox structure is concerned, to the left-hand side herein illustrated.

What I claim and desire to secure by Let ters Patent of the United States is:

l. A gin comprising 'a saw cylinder, a roll-box, a rake-head, and means for adjusting the rake-head in a direction parallel to the axis of the saw cylinder.

2'. A; gin comprising a saw cylinder, a roll-box having a rake-head secured to' an element thereof, and means for moving said element with the rake-head axially of the saw cylinder.

3. A gin comprising a. saw cylinder, a roll-box having a movable front wall, a

rake-head secured to said wall, means for adjusting said front wall in a direction axial of the saw cylinder, and means for se curing said front wallin adjusted position. LA gin comprising a saw cylinder and grate, a roll-box having a front wall or seed board supported to swing outwardly about its upper edge, and also to move bodily in an axial direction, a rake-head secured. to the front wall, and means for adjusting said front wall in an axial direction. 5. In a linter gin, in combination with the roll-box grate and saws, a rake-head mount ed on the front member of the roll--box, and

means for adjusting the front memberand rake-head axially and radially of the saws, and for locking the parts in adjustment in -one of said dimensions. 7

o. In a linter gm, aro'll-box and 'ratei fall comprising end members, a seed ward or front member for the roll-box pivoted on the end members, a rake-head fastened to the seed board, and means having a bearing in said end members and bearing at several points on the seed board adapted to move the seed boardon its pivots to adjust the rake-head.

7. In a linter gin means for adjusting a rake-head comprising a movable element of a roll-box on which the rake-head' ismounted, an eccentricfshaft having bearings on said movable element, concentric bearings for the shaft in members of the roll-box,

and means for fixing said shaft in-rotative adjustment.

8. In a gin, an adjustable metallic rollbox having a I front member or seed board comprising a ribbed grid, a metallic-lining for the grid adaptedto form one member of. an entrance hopper, end frame members, and means for attaching the grid to the'end members. 1

9. In a gin, an adjustable metallic rollbox having a front member or seed board comprising a ribbed grid, a; metallic lining for the grid. adapted to form one member of an entrance hopper, end. frame members. means for attaching the grid to the end members, and adjustment means for the grid adapted to be moved relatively to the end members permitting motions of adjustment of the front member.

Signed byme at Dallas, Texas, this 22nd day of August, 1922.

HIGHLAND GEE VARDlilLL, Executive: of the last wax and .testmnmtof Arthur A. Vardell, deceased. 

